Total heat exchanger

ABSTRACT

A total heat exchanger is provided. The total heat exchanger includes a housing, a total heat exchanging core, a first fan and a second fan. The housing includes a first side wall, a first receiving space, a second receiving space and a third receiving space. The third receiving space is adjacent to the first side wall. The total heat exchanging core is disposed in the third receiving space. The first fan is disposed in the first receiving space and communicates with the total heat exchanging core, wherein the first fan includes a first rotation axis. The second fan is disposed in the second receiving space and communicates with the total heat exchanging core, wherein the second fan includes a second rotation axis. The first fan, the second fan and the total heat exchanging core are arranged on a plane.

CROSS REFERENCE TO RELATED APPLICATIONS

This Application claims priority of Taiwan Patent Application No.105102459, filed on Jan. 27, 2016, the entirety of which is incorporatedby reference herein.

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a total heat exchanger, and inparticular to a total heat exchanger with a total heat exchanging coredisposed on a side thereof.

Description of the Related Art

In conventional total heat exchangers, a total heat exchanging core isdisposed in the central portion of the total heat exchanger, and fansare disposed on two sides of the total heat exchanging core to impel theair flow. The fans are disposed in an upright position. The total heatexchanging core exchanges the heat and the moisture with the air flow,and recycles energy.

In conventional total heat exchangers, the dimensions of the fans arerestricted by the dimensions of the total heat exchanging core. Thesmall fans produce noise, and cannot generate sufficient rates of flow.However, if the dimensions of the fans are increased, the dimensions ofthe total heat exchanging core and the whole total heat exchanger areincreased. Additionally, the capability of the total heat exchangingcore cannot be sufficiently exerted.

BRIEF SUMMARY OF THE INVENTION

In one embodiment, a total heat exchanger is provided. The total heatexchanger comprises a housing, a total heat exchanging core, a first fanand a second fan. The housing comprises a first side wall, a firstreceiving space, a second receiving space and a third receiving space.The third receiving space is adjacent to the first side wall. The totalheat exchanging core is disposed in the third receiving space. The firstfan is disposed in the first receiving space and communicates with thetotal heat exchanging core, wherein the first fan comprises a firstrotation axis. The second fan is disposed in the second receiving spaceand communicates with the total heat exchanging core, wherein the secondfan comprises a second rotation axis. The first fan, the second fan andthe total heat exchanging core are arranged on a plane, and the firstrotation axis and the second rotation axis are perpendicular to theplane.

In one embodiment, the housing further comprises a second side wall, thefirst receiving space and the second receiving space are adjacent to thesecond side wall, and the first receiving space and the second receivingspace are located between the second side wall and the third receivingspace.

In one embodiment, a first inlet chamber and a second inlet chamber areformed inside the housing. A first inlet, a second inlet, a first outletand a second outlet are formed on the housing. The first inlet chamberand the second inlet chamber correspond to the total heat exchangingcore. The first inlet is connected to the first inlet chamber. Thesecond inlet is connected to the second inlet chamber. The first outletcorresponds to the first fan, and the second outlet corresponds to thesecond fan.

In one embodiment, the first inlet chamber and the second inlet chamberare arranged in a first direction, and the first direction isperpendicular to the plane.

In one embodiment, the housing further comprises a third side wall and afourth side wall. The first side wall faces the second side wall. Thethird side wall faces the fourth side wall. The first inlet is formed onthe third side wall. The second inlet is formed on the fourth side wall.

In one embodiment, a first flow enters the total heat exchanger throughthe first inlet, passes through the first inlet chamber, the total heatexchanging core and the first fan, and leaves the total heat exchangerthrough the first outlet. A second flow enters the total heat exchangerthrough the second inlet, passes through the second inlet chamber, thetotal heat exchanging core and the second fan, and leaves the total heatexchanger through the second outlet.

In one embodiment, the total heat exchanger further comprises a firstguiding structure and a second guiding structure. The first guidingstructure is disposed in the first inlet chamber to push the first flowtoward the total heat exchanging core. The second guiding structure isdisposed in the second inlet chamber to push the second flow toward thetotal heat exchanging core.

In one embodiment, the first guiding structure and the second guidingstructure are formed on the first side wall.

In one embodiment, each of the first guiding structure and the secondguiding structure has at least one through opening.

In one embodiment, the first inlet chamber has an inlet chamber lengthL, a distance d1 is formed between the first guiding structure and thefirst inlet, and 0≦d1≦L/2.

In one embodiment, the first inlet chamber has a greatest inlet chamberwidth W, the first guiding structure has a structural width d2, andW/3≦d2≦W.

In one embodiment, the first inlet chamber has a greatest inlet chamberheight H, the first guiding structure has a structural height d3, andH/3≦d3≦H.

In the embodiment of the invention, the total heat exchanging core isadjacent to the first side wall. The heat exchanging area of the totalheat exchanging core is increased, and the air flow can smoothly enterthe total heat exchanging core. The first fan and the second fan lay onthe plane (in other words, the first rotation axis and the secondrotation axis are perpendicular to the plane). The first fan and thesecond fan are adjacent to the second wall. Therefore, the dimensions ofthe first fan and the second fan can be increased to improve flow rateand to reduce noise.

In one embodiment of the invention, the first guiding structure and thesecond guiding structure push the first flow and the second flow towardthe total heat exchanging core to improve the heat exchanging efficiencyof the total heat exchanging core.

A detailed description is given in the following embodiments withreference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention can be more fully understood by reading thesubsequent detailed description and examples with references made to theaccompanying drawings, wherein:

FIG. 1 shows a total heat exchanger of an embodiment of the invention;

FIG. 2A shows the air flow inside the total heat exchanger;

FIG. 2B is a cross sectional view along 2B-2B′ direction of FIG. 2A;

FIG. 2C is a cross sectional view along 2C-2C′ direction of FIG. 2A;

FIGS. 3A, 3B and 3C show the openings formed on the first guidingstructure;

FIG. 4A shows the position of the first guiding structure; and

FIG. 4B shows the dimensions of the first guiding structure.

DETAILED DESCRIPTION OF THE INVENTION

The following description is of the best-contemplated mode of carryingout the invention. This description is made for the purpose ofillustrating the general principles of the invention and should not betaken in a limiting sense. The scope of the invention is best determinedby reference to the appended claims.

FIG. 1 shows a total heat exchanger 1 of an embodiment of the invention.The total heat exchanger 1 comprises a housing 10, a total heatexchanging core 30, a first fan 21 and a second fan 22. The housing 10comprises a first side wall 101, a first receiving space 11, a secondreceiving space 12 and a third receiving space 13. The third receivingspace 13 is adjacent to the first side wall 101. The first fan 21 isdisposed in the first receiving space 11 and communicates with the totalheat exchanging core 30, wherein the first fan 21 comprises a firstrotation axis 211. The second fan 22 is disposed in the second receivingspace 12 and communicates with the total heat exchanging core 30,wherein the second fan 22 comprises a second rotation axis 221. Thetotal heat exchanging core 30 is disposed in the third receiving space13. The first fan 21, the second fan 22 and the total heat exchangingcore 30 are arranged on a plane P, and the first rotation axis 211 andthe second rotation axis 221 are perpendicular to the plane P.

In one embodiment, the housing 10 further comprises a second side wall102. The first receiving space 11 and the second receiving space 12 areadjacent to the second side wall 102. The first receiving space 11 andthe second receiving space 12 are located between the second side wall102 and the third receiving space 13.

In the embodiment of the invention, the total heat exchanging core 30 isadjacent to the first side wall 101. The heat exchanging area of thetotal heat exchanging core 30 is increased, and the air flow cansmoothly enter the total heat exchanging core 30. The first fan 21 andthe second fan 22 lay on the plane P (in other words, the first rotationaxis 211 and the second rotation axis 221 are perpendicular to the planeP). The first fan 21 and the second fan 22 are adjacent to the secondwall 102. Therefore, the dimensions of the first fan 21 and the secondfan 22 can be increased to improve flow rate and to reduce noise.

In one embodiment, a first inlet chamber 41 and a second inlet chamber42 are formed inside the housing 10. A first inlet 43, a second inlet44, a first outlet 45 and a second outlet 46 are formed on the housing10. The first inlet chamber 41 and the second inlet chamber 42correspond to the total heat exchanging core 30. The first inlet 43 isconnected to the first inlet chamber 41. The second inlet 44 isconnected to the second inlet chamber 42. The first outlet 45corresponds to the first fan 21, and the second outlet 46 corresponds tothe second fan 22.

In one embodiment, the first inlet chamber 41 and the second inletchamber 42 are arranged in a first direction Z. The first direction Z isperpendicular to the plane P.

In one embodiment, the housing 10 further comprises a third side wall103 and a fourth side wall 104. The first side wall 101 faces the secondside wall 102. The third side wall 103 faces the fourth side wall 104.The first inlet 42 is formed on the third side wall 103. The secondinlet 44 is formed on the fourth side wall 104.

FIG. 2A shows the air flow inside the total heat exchanger 1. FIG. 2B isa cross sectional view along 2B-2B′ direction of FIG. 2A. FIG. 2C is across sectional view along 2C-2C′ direction of FIG. 2A. With referenceto FIGS. 2A, 2B and 2C, in one embodiment, a first flow A1 enters thetotal heat exchanger 1 through the first inlet 43, passes through thefirst inlet chamber 41, the total heat exchanging core 30 and the firstfan 21, and leaves the total heat exchanger 1 through the first outlet45. A second flow A2 enters the total heat exchanger 1 through thesecond inlet 44, passes through the second inlet chamber 42, the totalheat exchanging core 30 and the second fan 22, and leaves the total heatexchanger 1 through the second outlet 46.

With reference to FIGS. 1, 2A, 2B and 2C, in one embodiment, the totalheat exchanger 1 further comprises a first guiding structure 51 and asecond guiding structure 52. The first guiding structure 51 is disposedin the first inlet chamber 41 to push the first flow A1 toward the totalheat exchanging core 30. The second guiding structure 52 is disposed inthe second inlet chamber 42 to push the second flow A2 toward the totalheat exchanging core 30. In this embodiment, the first guiding structure51 and the second guiding structure 52 are formed on the first side wall101.

In one embodiment of the invention, the first guiding structure 51 andthe second guiding structure 52 push the first flow A1 and the secondflow A2 toward the total heat exchanging core 30 to improve the heatexchanging efficiency of the total heat exchanging core 30.

However, in several embodiments, the first guiding structure 51 and thesecond guiding structure 52 may decrease the flow rate of the total heatexchanger. Therefore, with reference to FIGS. 3A, 3B and 3C, in oneembodiment, each of the first guiding structure 51 and the secondguiding structure 52 has through openings 53. For example, in FIG. 3A,the first guiding structure 51 has longitudinal openings 53 (fencesshaped) which extend in the Z direction. In FIG. 3B, the longitudinalopenings 53 (fences shaped) extend in X direction. In FIG. 3C, the firstguiding structure 51 has circular openings 53. The through openings onthe first guiding structure 51 and the second guiding structure 52 areadapted for modifying the flow rate of the total heat exchanger.

FIG. 4A shows the position and the dimensions of the first guidingstructure 51. In one embodiment, the first inlet chamber 41 has an inletchamber length L, a distance d1 is formed between the first guidingstructure 51 and the first inlet 43, and 0≦d1≦L/2. With reference toFIG. 4B, the first inlet chamber 41 has a greatest inlet chamber widthW, the first guiding structure 51 has a structural width d2, andW/3≦d2≦W. The first inlet chamber 41 has a greatest inlet chamber heightH, the first guiding structure 51 has a structural height d3, andH/3≦d3≦H. Experiments confirms that the heat exchanging efficiency ofthe total heat exchanger according to the above design is improved.However, the disclosure is not meant to restrict the invention. Theposition and dimensions of the second guiding structure 52 can be thesame as those of the first guiding structure 51.

Use of ordinal terms such as “first”, “second”, “third”, etc., in theclaims to modify a claim element does not by itself connote anypriority, precedence, or order of one claim element over another or thetemporal order in which acts of a method are performed, but are usedmerely as labels to distinguish one claim element having a certain namefrom another element having the same name (but for use of the ordinalterm).

While the invention has been described by way of example and in terms ofthe preferred embodiments, it is to be understood that the invention isnot limited to the disclosed embodiments. On the contrary, it isintended to cover various modifications and similar arrangements (aswould be apparent to those skilled in the art). Therefore, the scope ofthe appended claims should be accorded the broadest interpretation so asto encompass all such modifications and similar arrangements.

1. A total heat exchanger, comprising: a housing, comprising a first side wall, a first receiving space, a second receiving space and a third receiving space, wherein the third receiving space is adjacent to the first side wall; a total heat exchanging core, disposed in the third receiving space; a first fan, disposed in the first receiving space and communicating with the total heat exchanging core, wherein the first fan comprises a first rotation axis; and a second fan, disposed in the second receiving space and communicating with the total heat exchanging core, wherein the second fan comprises a second rotation axis, wherein the first fan, the second fan and the total heat exchanging core are arranged on a plane, and the first rotation axis and the second rotation axis are perpendicular to the plane.
 2. The total heat exchanger as claimed in claim 1, wherein the housing further comprises a second side wall, the first receiving space and the second receiving space are adjacent to the second side wall, and the first receiving space and the second receiving space are located between the second side wall and the third receiving space.
 3. The total heat exchanger as claimed in claim 2, wherein a first inlet chamber and a second inlet chamber are formed inside the housing, a first inlet, a second inlet, a first outlet and a second outlet are formed on the housing, the first inlet chamber and the second inlet chamber correspond to the total heat exchanging core, the first inlet is connected to the first inlet chamber, the second inlet is connected to the second inlet chamber, the first outlet corresponds to the first fan, and the second outlet corresponds to the second fan.
 4. The total heat exchanger as claimed in claim 3, wherein the first inlet chamber and the second inlet chamber are arranged in a first direction, and the first direction is perpendicular to the plane.
 5. The total heat exchanger as claimed in claim 3, wherein the housing further comprises a third side wall and a fourth side wall, the first side wall faces the second side wall, the third side wall faces the fourth side wall, the first inlet is formed on the third side wall, and the second inlet is formed on the fourth side wall.
 6. The total heat exchanger as claimed in claim 3, wherein a first flow enters the total heat exchanger through the first inlet, passes through the first inlet chamber, the total heat exchanging core and the first fan, and leaves the total heat exchanger through the first outlet, and a second flow enters the total heat exchanger through the second inlet, passes through the second inlet chamber, the total heat exchanging core and the second fan, and leaves the total heat exchanger through the second outlet.
 7. The total heat exchanger as claimed in claim 6, further comprising a first guiding structure and a second guiding structure, wherein the first guiding structure is disposed in the first inlet chamber to push the first flow toward the total heat exchanging core, and the second guiding structure is disposed in the second inlet chamber to push the second flow toward the total heat exchanging core.
 8. The total heat exchanger as claimed in claim 7, wherein the first guiding structure and the second guiding structure are formed on the first side wall.
 9. The total heat exchanger as claimed in claim 7, wherein each of the first guiding structure and the second guiding structure has at least one through opening.
 10. The total heat exchanger as claimed in claim 7, wherein the first inlet chamber has an inlet chamber length L, a distance d1 is formed between the first guiding structure and the first inlet, and 0≦d1≦L/2.
 11. The total heat exchanger as claimed in claim 10, wherein the first inlet chamber has a greatest inlet chamber width W, the first guiding structure has a structural width d2, and W/3≦d2≦W.
 12. The total heat exchanger as claimed in claim 11, wherein the first inlet chamber has a greatest inlet chamber height H, the first guiding structure has a structural height d3, and H/3≦d3≦H.
 13. A total heat exchanger, comprising: a housing, comprising a first side wall, a first receiving space, a second receiving space and a third receiving space, wherein the third receiving space is adjacent to the first side wall; a total heat exchanging core, disposed in the third receiving space; a first fan, disposed in the first receiving space and communicating with the total heat exchanging core, wherein the first fan comprises a first rotation axis; and a second fan, disposed in the second receiving space and communicating with the total heat exchanging core, wherein the second fan comprises a second rotation axis, wherein the housing further comprises a second side wall, the first receiving space and the second receiving space are adjacent to the second side wall, and the first receiving space and the second receiving space are located between the second side wall and the third receiving space, and wherein a first inlet chamber and a second inlet chamber are formed inside the housing, a first inlet, a second inlet, a first outlet and a second outlet are formed on the housing, the first inlet chamber and the second inlet chamber correspond to the total heat exchanging core, the first inlet is connected to the first inlet chamber, the second inlet is connected to the second inlet chamber, the first outlet corresponds to the first fan, and the second outlet corresponds to the second fan.
 14. The total heat exchanger as claimed in claim 13, wherein a first flow enters the total heat exchanger through the first inlet, passes through the first inlet chamber, the total heat exchanging core and the first fan, and leaves the total heat exchanger through the first outlet, and a second flow enters the total heat exchanger through the second inlet, passes through the second inlet chamber, the total heat exchanging core and the second fan, and leaves the total heat exchanger through the second outlet.
 15. The total heat exchanger as claimed in claim 14, further comprising a first guiding structure and a second guiding structure, wherein the first guiding structure is disposed in the first inlet chamber to push the first flow toward the total heat exchanging core, and the second guiding structure is disposed in the second inlet chamber to push the second flow toward the total heat exchanging core.
 16. The total heat exchanger as claimed in claim 15, wherein the first guiding structure and the second guiding structure are formed on the first side wall.
 17. The total heat exchanger as claimed in claim 15, wherein each of the first guiding structure and the second guiding structure has at least one through opening.
 18. The total heat exchanger as claimed in claim 15, wherein the first inlet chamber has an inlet chamber length L, a distance d1 is formed between the first guiding structure and the first inlet, and 0≦d1≦L/2.
 19. The total heat exchanger as claimed in claim 18, wherein the first inlet chamber has a greatest inlet chamber width W, the first guiding structure has a structural width d2, and W/3≦d2≦W.
 20. The total heat exchanger as claimed in claim 19, wherein the first inlet chamber has a greatest inlet chamber height H, the first guiding structure has a structural height d3, and H/3≦d3≦H. 